<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>透明度動(dòng)畫</title><link href="mystyle2.css" rel="stylesheet" type="text/css" ><script type="text/javascript"> window.onload=function(){ var oDiv=document.getElementById("div1"); oDiv.onmouseover=function(){ startMove(100); } oDiv.onmouseout=function(){ startMove(20); } } var timer=null; var alpha=30; function startMove(iTarget){ var oDiv=document.getElementById("div1"); clearInterval(timer); timer.setInterval(function(){ var speed=0; if(alpha>iTarget){ speed=-10; } else{ speed=10; } if(alpha==iTarget){ clearInterval(timer); } else{ alpha+=speed; oDiv.style.filter='alpha(opacity:'+alpha+')';//IE oDiv.style.opacity=alpha/100;//火狐或chrome } },30); }</script></head><body> <div id="div1"></div></body></html>
為什么透明度沒有變化
初晴ljp
2017-03-09 17:04:12